Eat Your Way To A Great 10K

Womens Running

Hello runners! I’m Kate Percy, author of Go Faster Food and Go Faster Food for Kids. As a cook, marathon runner and food for fitness writer, I’m passionate about helping runners be the absolute best they can be by fuelling themselves with great food. I’m very excited to have been asked by Great Run to blog with nutrition tips and delicious recipes to boost your training.

Training for a race isn’t just about sticking to your training plan. Eating the right types of foods, at the right time – a variety of unprocessed, unrefined foods rich in slow-releasing carbohydrate, good quality protein and healthy fats – will strengthen the immune system, keep your muscles healthy, help you recover well and maintain your energy levels. This, in turn, will make you feel completely amazing, help you train and race better and reduce the risk of getting injured. For starters, here are my top tips to help you eat your way to your best 10k. Later I’ll be posting more specifically on aspects such as hydration, top #gofaster carbs, and, of course, some great recipes to help you on your way.

Would you put diesel into a Ferrari?

It’s quite simple. Just like a car, you need fuel. You’re not going to get very far running on empty! Put the wrong type of fuel in your car, it won’t function very well either. The body works in the same way. The better the fuel in the tank, the better you will feel, the better you will perform. Click here for some great recipe ideas to support your training.

Mix it up!

The ideal training diet should include a wide variety of foods. You’ll run best on a balanced diet, so it’s important not to cut out one particular food group, such as carbohydrate, protein or fat. Ideally around one third of what you eat should come from foods rich in slow-release, unrefined carbohydrate, such as wholegrain bread, wholewheat pasta and cereal, oats and brown rice, around one third from fruit and vegetables, and the rest from foods rich in protein, such as beans, pulses, fish, eggs and meat and fat.

Click here for my top 10 Go Faster Foods for Runners. 

Listen to your body

Now you have started training you might find your hunger increases. Rightly so, as you’re burning morecalories than your more sedentary self.  It’s important to listen to your body and eat when you are hungry to maintain your energy levels and keep your muscles healthy. You will need to eat more food, it’s as simple as that! Watch out though. Your body may need extra calories, but this doesn’t mean that you should just grab the nearest pork pie! Try your best to make sure each mouthful is nutritious – unprocessed, fresh and natural. Of course, with our busy lifestyles processed foods are virtually impossible to avoid, so when you do eat them, check the label for hidden saturated fats, sugar and salt.

If you are hungry between meals, try snacking on fruit, nuts and seeds, fruit loaf, or try making some of these tasty energy bars

Mind your pees!

Good hydration doesn’t just mean drinking before, during and after a training session. Keeping well-hydrated throughout the day will help you feel so much better. Try to sip water throughout the day. Keep bottles of water with you, at your desk, in the car, on your bedside table. I take a big bottle of water to work with me and make sure I finish it by the end of the day.

A great way to check you’re drinking enough is to look at the colour of your pee. If it is a pale straw-like colour, then you are well-hydrated. A darker yellow is an indication that you need to drink more. 

I’ll be writing a specific post on hydration with some delicious recipes for home made sports drinks, but in the meantime click here for more.

Training on empty?

Eating 1-2 hours in advance of your runs will give your body enough time to digest the important nutrients needed to fuel your muscles. You’ll train stronger and feel better. Something easy to digest and high in carbohydrate that will gradually release energy to your muscles; a bowl of unrefined porridge with blueberries, a wholemeal sandwich with hummus and rocket or even a handful of nuts and raisins and a banana.

If, like me, you are incapable of waking up early enough to eat breakfast before an early morning run, boost your blood sugar with just half a banana or a couple of energy balls before you set off.

The magic window

Eating immediately after your runs, too, will optimise recovery so you can continue training regularly, and help prevent injury. Carbohydrate is stored in the muscles and liver as ‘glycogen’. After longer runs of, say 60 minutes, glycogen levels become depleted and the quicker they are topped up, the quicker you will recover so that you are ready for your run the next day. A good combo of carbohydrate and protein (3:1 is a good ratio) within the ‘magic window’ of about 30 minutes after training is when your muscles are at their most receptive. Grab something as soon as you finish your workout like a slice of toast with scrambled egg, peanut butter or hummus, an energy bar or flapjack, a piece of fruit (melon is good) or a refreshing home-made smoothie made with milk or yoghurt.

80:20 rules OK

Enjoy your food! It’s what makes running such a pleasure! Please don’t get too hung up on your exact food intake; a relaxed attitude to eating will help you stay focussed, feel good, exercise better and enjoy your training without starting to feel that it is a chore. Eating well for around 80% of the time means that you can afford to stray for the remaining 20% without feeling guilty.

Happy training!

If you’d like more information on my Go Faster Food books, check them out on or on



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